I think we're getting so caught up in this 'debate' that we've forgotten that sport and trad routes are not mutually exclusive. It's not like EVERYTHING is bolted, nor is it that EVERYTHING is runout and bold and dangerous. IMHO, keep the sport routes at the sport crags, the trad routes where they've been established, don't bolt cracks, leave the mountains drill-free, and think before you do anything.
In other words, bolt shit at Smith, not at Seneca Rocks. Don't retrobolt Orbit. Leave the Bosch at home when you go do Stuart. Think about your impact before you pry off that flake, place that pin, or scrub that crack.
Difficult, eh?